Just to be clear:
1. when our debugger is at a breakpoint,
2. the user can type in an expression at the repl
3. in response, our debugger has to compile the user-typed-in expression to javascript (and then execute it, showing a result)
4. taking into account any local bindings. <---- this is the key bit.

To satisfy point 4, our tool extracts all the 'locals' from the current call-frame, and then supplies all these local bindings in env/locals, so the compiler doesn't stick a namespace on the front of them.

For example, if there was a local binding for 'x' in the callstack, and the user's repl-entered-expression involves 'x', then we want the compiler to leave the symbol 'x' alone and to not put some namespace on the front of it. In the final javascript, it must still be 'x', not 'some.namespace.x'

Our method to achieve this is to put 'x' into env/locals when compiling – and it all works. Except, with the recent changes this has become more of a challenge. Hence this ticket asking for a way to pass in env.

I wonder if the fix for CLJS-921 will affect this patch. (I'm thinking that the patch relied on the :name meta containing the fully qualified name, but that with CLJS-921 the :ns would also need to be consulted—as is done in the doc printing impl.)

I tried applying this patch and rerunning the bootstrap script. This works but when I try to run script/test I get an error about the tools.reader not being on the classpath. Even trying to require tools.reader at via the repl doesn't work for me.